Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”

Andøya on the NW coast of Norway is a key site for understanding the Last Glacial Maximum (LGM) in northern Europe. Controversy has arisen concerning the local conditions, especially about the timing and extent of local glacial cover, maximum July temperatures and whether pine and/or spruce could ha...

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Main Authors: Alsos, Inger Greve, Sjögren, Per, Brown, Antony G., Gielly, Ludovic, Merke, Marie Kristine Føreid, Paus, Aage, Lammers, Youri, Edwards, Mary E., Alm, Torbjørn, Leng, Melanie, Goslar, Tomasz, Langdon, Catherine T., Bakke, Jostein, van der Bilt, Willem G.M.
Format: Article in Journal/Newspaper
Language:English
Published: Elsevier 2020
Subjects:
Online Access:https://hdl.handle.net/10037/21365
id ftunivtroemsoe:oai:munin.uit.no:10037/21365
record_format openpolar
spelling ftunivtroemsoe:oai:munin.uit.no:10037/21365 2023-05-15T13:16:26+02:00 Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” Alsos, Inger Greve Sjögren, Per Brown, Antony G. Gielly, Ludovic Merke, Marie Kristine Føreid Paus, Aage Lammers, Youri Edwards, Mary E. Alm, Torbjørn Leng, Melanie Goslar, Tomasz Langdon, Catherine T. Bakke, Jostein van der Bilt, Willem G.M. 2020-06-05 https://hdl.handle.net/10037/21365 eng eng Elsevier Quaternary Science Reviews info:eu-repo/grantAgreement/RCN/FRIMEDBIO/213692/Norway/Ancient DNA of NW Europe reveals responses to climate change// info:eu-repo/grantAgreement/RCN/KLIMAFORSK/230617/Norway/Ancient DNA of NW Europe reveals responses to climate change// info:eu-repo/grantAgreement/RCN/FRIMEDBIO/250963/Norway/ECOGEN - Ecosystem change and species persistence over time: a genome-based approach/ECOGEN/ Alsos IGA, Sjogren P, Brown A, Gielly L, Paus A, Edwards ME, Leng, Forwick M, Føried Merkel, Langdon C, Bakke JB, Alm T, Van Der Bilt Wvd. Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” . Quaternary Science Reviews. 2020;239 FRIDAID 1877003 10.1016/j.quascirev.2020.106364 0277-3791 0277-3791 1873-457X https://hdl.handle.net/10037/21365 openAccess Copyright 2020 The Author(s) VDP::Mathematics and natural science: 400 VDP::Matematikk og Naturvitenskap: 400 Journal article Tidsskriftartikkel Peer reviewed publishedVersion 2020 ftunivtroemsoe 2021-06-25T17:58:02Z Andøya on the NW coast of Norway is a key site for understanding the Last Glacial Maximum (LGM) in northern Europe. Controversy has arisen concerning the local conditions, especially about the timing and extent of local glacial cover, maximum July temperatures and whether pine and/or spruce could have grown there. We reviewed all existing data and add newly analysed ancient sedimentary DNA ( seda DNA), pollen, macrofossils, geochemistry and stable isotopes from three lake sediment cores from Øvre Æråsvatnet. A total of 23 new dates and age-depth modelling suggests the lake has been ice-free since GI2 (<23.4 cal ka BP) and possibly GS3 (<26.7 cal ka BP). Pinus and Picea seda DNA was found in all three cores but at such low frequencies that it could not be distinguished from background contamination. LGM samples have an exceptionally high organic matter content, with isotopic values indicating that carbon and nitrogen derive from a marine source. Along with finds of bones of the little auk ( Alle alle ), this indicates that the lake received guano from an adjacent bird colony. Seda DNA, pollen and macrofossil assemblages were dominated by Poaceae, Brassicaceae and Papaver, but scattered occurrence of species currently restricted to the Low Arctic Tundra Zone (July temperature of 8–9 °C) such as Apiaceae ( seda DNA, 8–9 °C), and Alchemilla alpina (macrofossil, 8–9 °C) were also recorded. The review of >14.7 cal ka BP data recorded 94 vascular plant taxa, of which 38% have a northern limit in Shrub Tundra or more southern vegetation zones. This unusual assemblage likely stems from a combination of proximity to ice-free water in summer, geographical isolation linked with stochastic long-distance dispersal events, and the presence of bird-fertilized habitats. The environmental reconstruction based on all records from the area does not preclude local growth of tree species, as the local climate combined with high nutrient input may have led to periodically suitable environmental ‘hotspot’ conditions. Article in Journal/Newspaper Alle alle Andøya Arctic little auk Northern Norway Tundra University of Tromsø: Munin Open Research Archive Arctic Norway Guano ENVELOPE(141.604,141.604,-66.775,-66.775) Andøya ENVELOPE(13.982,13.982,68.185,68.185) Øvre ENVELOPE(14.991,14.991,67.750,67.750) øvre Æråsvatnet ENVELOPE(16.035,16.035,69.256,69.256)
institution Open Polar
collection University of Tromsø: Munin Open Research Archive
op_collection_id ftunivtroemsoe
language English
topic VDP::Mathematics and natural science: 400
VDP::Matematikk og Naturvitenskap: 400
spellingShingle VDP::Mathematics and natural science: 400
VDP::Matematikk og Naturvitenskap: 400
Alsos, Inger Greve
Sjögren, Per
Brown, Antony G.
Gielly, Ludovic
Merke, Marie Kristine Føreid
Paus, Aage
Lammers, Youri
Edwards, Mary E.
Alm, Torbjørn
Leng, Melanie
Goslar, Tomasz
Langdon, Catherine T.
Bakke, Jostein
van der Bilt, Willem G.M.
Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
topic_facet VDP::Mathematics and natural science: 400
VDP::Matematikk og Naturvitenskap: 400
description Andøya on the NW coast of Norway is a key site for understanding the Last Glacial Maximum (LGM) in northern Europe. Controversy has arisen concerning the local conditions, especially about the timing and extent of local glacial cover, maximum July temperatures and whether pine and/or spruce could have grown there. We reviewed all existing data and add newly analysed ancient sedimentary DNA ( seda DNA), pollen, macrofossils, geochemistry and stable isotopes from three lake sediment cores from Øvre Æråsvatnet. A total of 23 new dates and age-depth modelling suggests the lake has been ice-free since GI2 (<23.4 cal ka BP) and possibly GS3 (<26.7 cal ka BP). Pinus and Picea seda DNA was found in all three cores but at such low frequencies that it could not be distinguished from background contamination. LGM samples have an exceptionally high organic matter content, with isotopic values indicating that carbon and nitrogen derive from a marine source. Along with finds of bones of the little auk ( Alle alle ), this indicates that the lake received guano from an adjacent bird colony. Seda DNA, pollen and macrofossil assemblages were dominated by Poaceae, Brassicaceae and Papaver, but scattered occurrence of species currently restricted to the Low Arctic Tundra Zone (July temperature of 8–9 °C) such as Apiaceae ( seda DNA, 8–9 °C), and Alchemilla alpina (macrofossil, 8–9 °C) were also recorded. The review of >14.7 cal ka BP data recorded 94 vascular plant taxa, of which 38% have a northern limit in Shrub Tundra or more southern vegetation zones. This unusual assemblage likely stems from a combination of proximity to ice-free water in summer, geographical isolation linked with stochastic long-distance dispersal events, and the presence of bird-fertilized habitats. The environmental reconstruction based on all records from the area does not preclude local growth of tree species, as the local climate combined with high nutrient input may have led to periodically suitable environmental ‘hotspot’ conditions.
format Article in Journal/Newspaper
author Alsos, Inger Greve
Sjögren, Per
Brown, Antony G.
Gielly, Ludovic
Merke, Marie Kristine Føreid
Paus, Aage
Lammers, Youri
Edwards, Mary E.
Alm, Torbjørn
Leng, Melanie
Goslar, Tomasz
Langdon, Catherine T.
Bakke, Jostein
van der Bilt, Willem G.M.
author_facet Alsos, Inger Greve
Sjögren, Per
Brown, Antony G.
Gielly, Ludovic
Merke, Marie Kristine Føreid
Paus, Aage
Lammers, Youri
Edwards, Mary E.
Alm, Torbjørn
Leng, Melanie
Goslar, Tomasz
Langdon, Catherine T.
Bakke, Jostein
van der Bilt, Willem G.M.
author_sort Alsos, Inger Greve
title Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
title_short Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
title_full Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
title_fullStr Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
title_full_unstemmed Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot”
title_sort last glacial maximum environmental conditions at andøya, northern norway; evidence for a northern ice-edge ecological “hotspot”
publisher Elsevier
publishDate 2020
url https://hdl.handle.net/10037/21365
long_lat ENVELOPE(141.604,141.604,-66.775,-66.775)
ENVELOPE(13.982,13.982,68.185,68.185)
ENVELOPE(14.991,14.991,67.750,67.750)
ENVELOPE(16.035,16.035,69.256,69.256)
geographic Arctic
Norway
Guano
Andøya
Øvre
øvre Æråsvatnet
geographic_facet Arctic
Norway
Guano
Andøya
Øvre
øvre Æråsvatnet
genre Alle alle
Andøya
Arctic
little auk
Northern Norway
Tundra
genre_facet Alle alle
Andøya
Arctic
little auk
Northern Norway
Tundra
op_relation Quaternary Science Reviews
info:eu-repo/grantAgreement/RCN/FRIMEDBIO/213692/Norway/Ancient DNA of NW Europe reveals responses to climate change//
info:eu-repo/grantAgreement/RCN/KLIMAFORSK/230617/Norway/Ancient DNA of NW Europe reveals responses to climate change//
info:eu-repo/grantAgreement/RCN/FRIMEDBIO/250963/Norway/ECOGEN - Ecosystem change and species persistence over time: a genome-based approach/ECOGEN/
Alsos IGA, Sjogren P, Brown A, Gielly L, Paus A, Edwards ME, Leng, Forwick M, Føried Merkel, Langdon C, Bakke JB, Alm T, Van Der Bilt Wvd. Last Glacial Maximum environmental conditions at Andøya, northern Norway; evidence for a northern ice-edge ecological “hotspot” . Quaternary Science Reviews. 2020;239
FRIDAID 1877003
10.1016/j.quascirev.2020.106364 0277-3791
0277-3791
1873-457X
https://hdl.handle.net/10037/21365
op_rights openAccess
Copyright 2020 The Author(s)
_version_ 1766273957107859456